Chemical defense and antifouling activity of three Mediterranean sponges of the genus Ircinia

Zeitschrift Für Naturforschung. C, a Journal of Biosciences
Maria TsoukatouVassilios Roussis

Abstract

The defense roles and the antifouling activity of the organic extracts and the major metabolites of the sponges Ircinia oros, I. variabilis and I. spinosula were investigated. The antifeedant activity was tested in experimental aquaria on the generalist predator fish Thalassoma pavo as well as in coastal ecosystems rich in fishes. Some of the major metabolites exhibited high levels of antifeedant activity. The antifouling activity was tested in laboratory assays, against representatives of the major groups of fouling organisms (marine bacteria, marine fungi, diatoms, macroalgae and mussels). All extracts showed promising levels of activity. As was expected, no single extract was active in all tests and some fractions that were effective against one organism showed little or no activity against the others. The high but variable level of antifouling activity in combination with the absence of toxicity (tested on the development of oyster and sea urchin larvae) shows the potential of these metabolites to become ingredients in environmentally friendly antifouling preparations.

Citations

May 27, 2009·Marine Biotechnology·Erwan PlouguernéValérie Stiger-Pouvreau
May 7, 2011·Marine Biotechnology·Mirko BayerPeter Proksch
Mar 18, 2016·Journal of Phycology·Wladimir Costa ParadasGilberto Menezes Amado-Filho
Sep 18, 2007·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Maria TsoukatouVassilios Roussis
Nov 5, 2008·Journal of Natural Products·Redouane MokriniGérald Culioli
May 1, 2021·Marine Drugs·Disha VarijakzhanChou-Min Chong
Aug 6, 2021·Environmental Science and Pollution Research International·Lucia De MarchiFabio Bulleri
Aug 26, 2017·Journal of Natural Products·Giuseppina ChianeseDeniz Tasdemir

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